LTO45120-5 2.4V 5mAh High-Temperature LTO Cell (25,000 Cycles, -40°C to 100°C)

Product Overview

The LTO45120-5 is an ultra-compact, high-performance 2.4V 5mAh rechargeable Lithium Titanate (LTO) pin cell engineered specifically for extreme environments and mission-critical reliability. Designed for applications requiring an exceptionally long lifecycle and a wide operating temperature window, this cylindrical micro-battery outperforms standard lithium chemistries in demanding conditions.

With its ability to safely operate in temperatures ranging from -40°C up to +100°C and sustain extreme 20C fast charge/discharge rates, the LTO45120-5 is the ideal power solution for next-generation industrial IoT sensors, medical patches, wearable electronics, and robust backup power systems.

Key Features

• Extreme Longevity (25,000+ Cycles): Engineered for decades of maintenance-free service, retaining over 80% of its initial capacity even after 25,000 full charge-discharge cycles.

• Unmatched Temperature Tolerance: Operates flawlessly in extreme climates from arctic cold (-40°C) to intense industrial heat (+100°C).

• High-Rate Pulse Capability (20C Rate): Supports continuous and pulse currents up to 100mA (20C), making it perfectly suited for wireless transmissions (Bluetooth, LoRa, RF) and high-drain bursts.

• Ultra-Safe Chemistry: Inherently safe LTO chemistry prevents thermal runaway. The cell passes stringent overcharge, short-circuit, impact, and drop testing without risk of fire or explosion.

• Cylindrical Pin Form Factor: Micro-sized dimensions (Φ4.4 x 12.0mm) with integrated radial leads for easy, low-profile integration onto space-constrained PCBs.

Core Specifications

Typical capacity is 5mAh with a tolerance of -20% to +20%. Nominal voltage is 2.4V. Internal impedance is ≤800mΩ measured at AC 1kHz after standard charge. Charge cut-off voltage is 2.8V. Discharge cut-off voltage is 1.8V. Standard charge and discharge current is 5mA (1C). The maximum charge and discharge current is 100mA (20C). Operating temperature range is -40°C to +100°C. Storage temperature range is -20°C to +70°C.

Physical Dimensions

Diameter ΦD is 4.4±0.1mm. Length L1 is 12.0±0.5mm. Lead length L2 is 17.5±1.0mm, and L3 is 14±1.0mm. Lead diameter Φd is 0.45±0.05mm. Lead pitch F is 1.6±0.2mm. The cell has a cylindrical pin-type form factor.

Cycle Life

• Unmatched Longevity: Under standard operating conditions, the cell retains 80% or more of its original capacity after 25,000 full charge-discharge cycles.

• Decade-Plus Service: This extraordinary lifespan virtually eliminates the need for battery replacements, making it the definitive choice for remote, hard-to-access deployment environments and applications requiring continuous daily cycling over many years.

Temperature Performance

• Cold Weather Resiliency: Engineered to survive and function in sub-zero environments, the cell successfully discharges at 0.2C or 1C down to a 1.8V cutoff even at extreme temperatures as low as -40°C.

• Superior Heat Tolerance: In high-temperature environments up to 100°C, the cell maintains excellent stability with a capacity retention rate of 90% or higher.

• Robust Storage Recovery: Even after prolonged high-temperature storage (70°C for 28 days), the cell demonstrates exceptional resilience, retaining over 50% of its capacity and recovering more than 80% upon subsequent charges.

Safety and Reliability

• Thermal Runaway Prevention: Leveraging inherently stable Lithium Titanate chemistry, the cell guarantees maximum operational safety under heavy stress without risk of fire or explosion.

• Strict Abuse Testing: * Overcharge & Over-discharge: Withstands severe overcharging (3C to 4.2V for 2 hours) and deep over-discharging (through a 30-ohm resistor for 28 hours) without showing signs of leakage, smoke, or physical failure.

  • Short Circuit Protection: Survives direct external short circuits (<50mΩ resistance) safely.

  • Mechanical Durability: Passes rigorous impact testing (10kg weight dropped from 1 meter), vibration profiles, and drop tests without compromising internal safety structures.

Core Applications

• Industrial IoT & Edge Computing: Ideal for smart wireless sensor networks (WSN), environmental monitoring, and remote telemetry equipment.

• Smart Wearables & Healthcare: Perfectly sized for low-profile medical patches, health trackers, and compact wearable electronics.

• Tracking & Communications: Provides reliable, high-pulse power for Bluetooth beacons, RF transmitters, LoRa micro-devices, and asset tracking systems.

• Memory & Clock Backup: Serves as a dependable, maintenance-free backup power source for Real-Time Clocks (RTC) and critical system memory arrays.

Q1: Do you provide free samples?
A: Yes, a few pieces of free samples can be provided, but freight will be charged.

Q2: What is the warranty period for this product?
A: We provide a 1-year warranty from the date of purchase.

Q3: What are your payment terms?
A: We currently accept payments via T/T (Telegraphic Transfer) and L/C (Letter of Credit).

Q4: Do you accept OEM or ODM orders?
A: Yes, we do. We can print your custom logo on the products and provide tailored design solutions for your specialized battery packs or capacitor modules.

Q5: What is your monthly production capacity?
A: Our current production capacity is 1.8 million cells per month, ensuring a stable and reliable supply for large-scale orders.

Q6: What are your shipping and transportation methods?
A: We primarily ship orders by sea for bulk volumes. However, we can also arrange air freight or express delivery (such as DHL, FedEx, or UPS) depending on your urgency, order size, and destination.

Q7: What certifications do your products have?
A: We have obtained UN38.3, MSDS, and other relevant international certifications to ensure safe transportation and usage.

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